  .form-signin {
    max-width: 330px;
    padding: 15px;
    margin: 0 auto;
  }

  .form-signin .form-signin-heading, .form-signin .checkbox {
    margin-bottom: 10px;
  }

  .form-signin .checkbox {
    font-weight: normal;
  }

  .form-signin .form-control {
    position: relative;
    height: auto;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 10px;
    font-size: 16px;
  }

  .form-signin .form-control:focus {
    z-index: 2;
  }

  .form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
  }

  .form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
  }

  .info {
    text-align: center;
  }

  /* 表单验证样式 */

  .ng-valid[required], .ng-valid.required {
    border-left: 5px solid #42A948;
    /* green */
  }

  .ng-invalid:not(form) {
    border-left: 5px solid #a94442;
    /* red */
  }